Results 261 to 270 of about 99,909 (304)

Nonparametric repair-limit replacement policies with imperfect repair

European Journal of Operational Research, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dohi, Tadashi, Matsushima, Nobuyuki, Kaio, Naoto, Osaki, Shunji   +3 more
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A 2-unit System with "Imperfect" Repair

Mathematische Operationsforschung und Statistik. Series Optimization, 1980
In the study of repairable systems, it is usually assumed that a unit is ‘new’ after repair. While this assumption simplifies the analysis of such systems, there are many instances, in which this assumption is not true. In this paper, we study a 2-unit cold standby redundant system, In which the number of repairs that can be done for each unit is h and
Subramanian, R., Natarajan, R.
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Bayesian multivariate imperfect repair model

Journal of Statistics and Management Systems, 2010
Summary: This paper generalizes a multivariate imperfect repair model by adapting a Bayesian approach. We concern with modeling a system whose components have specific multivariate distribution of dependent lifelengths. Upon failure, each components undergoes imperfect repair.
Sheu, S. H., Chang, C. C.
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Warranty servicing with imperfect repair

International Journal of Production Economics, 2008
A manufacturer of a product sold with warranty incurs additional costs from the servicing of warranty claims made by customers. These costs depend on several factors such as the reliability of the product, the warranty terms, the maintenance actions of the customers, and the servicing strategy used by the manufacturer.
Yun, W. Y., Murthy, D. N. P., Jack, N.
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Imperfect repair policies under two-dimensional warranty

Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 2006
For repairable items, the manufacturer is required to rectify all item failures through minimal repair, replacement, and imperfect repair should failures occur within the period specified in the warranty. In this paper, a new warranty servicing strategy is examined, considering imperfect repair with a two-dimensional warranty where the failed item is ...
WON YOUNG YUN, KYUNG MIN KANG
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Models for Imperfect Repair

2011
We consider two main approaches for modeling of imperfect repair processes. The first approach is via the modeling of conditional intensities, which combines in some sense the features of the “extreme” repair processes, RP and NHPP. The second approach is via the notion of effective ages, where the idea is that repairs may result in improved system ...
M. Luz Gámiz, K. B. Kulasekera, Nikolaos Limnios, Bo Henry Lindqvist   +3 more
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Optimizing Series Repairable Systems with Imperfect Repair

International Journal of Operations Research and Information Systems, 2011
Repairable systems are either repaired perfectly to a state of as good as new or imperfectly. In this work, a system which undergoes imperfect repair is investigated. A nonlinear mathematical model is formulated for a system with the objective of finding the optimum failure and repair rate with the minimum costs subject to attaining a pre-specified ...
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Imperfect repair models with preventive maintenance

Journal of Applied Probability, 2003
Brown and Proschan (1983) introduced the imperfect repair model, in which an item, upon failure, is replaced with a new one with probability α, and is minimally repaired with probability 1 − α. In this paper we equip the imperfect repair model with preventive maintenance, and we obtain stochastic maintenance comparisons for the numbers of failures ...
Li, Haijun, Shaked, Moshe
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Maintenance policies for protection systems with imperfect inspection and imperfect repair

Reliability Engineering & System Safety
In this study, we investigate the optimal maintenance policies for stochastically deteriorating protection systems with imperfect inspections and imperfect repairs. We model the system's degradation as a continuous-time Markov chain with three states: good, poor, and failed.
Tekin, Salih, Bakir, Niyazi Onur, Keles, Busra   +2 more
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An n-standby repairable system with imperfect switching

OPSEARCH, 2012
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Gogoi, Jonali, Borah, Munindra, Sriwastav, G. L.   +2 more
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